1. The term schizophrenia comes from two Greek words that mean splitting apart of mental functions. “Split mind“ http://www.youtube.com/watch?v=0vv U-Ajwbok&sns=em

2. Psychotic disorder *impaired thinking, emotions, and behaviors. *unable to filter sensory stimuli and may have enhanced perceptions of sounds, colors, and other features of the environment.

3. 5 types

4. Catatonic -disturbances of movement that may include rigid movement, stupor, agitation, bizarre posturing, and repetitive imitations of the movements or speech of other people. These patients are at risk for malnutrition, exhaustion, or self-injury.

5. Paranoid -the combination of false beliefs (delusions) and hearing voices (auditory hallucinations), with more nearly normal emotions and cognitive functioning (cognitive functions include reasoning, judgment, and memory).

6. Disorganized-disorganized speech, thinking, and behavior on the patient's part, coupled with flat or inappropriate emotional responses to a situation (affect).

7. Undifferentiated Patients in this category have the characteristic positive (for ex. hallucinations) and negative symptoms (withdrawal) of schizophrenia but do not meet the specific criteria for the paranoid, disorganized, or catatonic subtypes.

8. Residual This category is used for patients who have had at least one acute schizophrenic episode but do not presently have strong positive psychotic symptoms, such as delusions and hallucinations. They may have negative symptoms, such as withdrawal from others, or mild forms of positive symptoms, which indicate that the disorder has not completely resolved.

9. Delusions are fixed false beliefs which are based on false or incomplete information Hallucinations are false or distorted sensory experiences in the absence of external stimuli. These sensory impressions are generated by the mind and may be seen, heard, felt, and even smelled or tasted.

10. Positive Symptoms: Hallucinations, delusions Negative Symptoms: apathy, lack of emotion, poor or non-existent social functioning Excessive levels of the neurotransmitter dopamine have long been implicated in schizophrenia.

11. Causes and Treatment No single cause has been found! Complications during pregnancy and birth An abnormality within the brain Brain chemistry-very sensitive to a brain chemical called dopamine Heredity Antipsychotic medications + counseling